EXPLANATION OP THE PLATES. 
Fig. 1. 
" 2. 
" 3. 
" 4. 
" 5. 
" 5a. 
PLATE I. 
Lymnorea Alexandri, nov. sp.. Half-grown medusa. 
" " Full-grown medusa. 
6. Syndictyon angulatum, 
7. Netocertoides brachiatum. 
8. Halitiara formoSa. 
9. Stomoioca australis. 
Fig. 10. Dissonema turrida. 
" 11. Tiara superba. 
" 13. Willia ornata. 
" 13. Hyhocodon Forbesii. 
" 14. Bougainvillia niobe. 
" 15. 
Side view of tentacle showing ectodermal 
ocellus. 
Side view of manubrium showing nematocyst 
knobs. 
Enlarged view of a nematocyst knob of 
manubrium. 
Section of swollen portion of radial canal 
showing vacuolated entodermal cells. 
Mature medusa. 
Mature medusa. 
PLATE II. 
15a. 
15b, 15c. 
Mature medusa. 
Mature medusa. 
Mature medusa. 
Mature medusa. 
Section of the manubrium showing medusa 
buds, in various stages, developing within 
the ectoderm {ect). The entoderm, and 
the limiting membrane (s I) remaining 
unbroken and inert 
Very young bud {ent. b), entoderm of the 
bud. (c) Mass of cells within the central 
cavity of the entoderm. These probably 
contribute to the nutrition of the bud. 
Successive stages in the development of the 
medusa buds. Lettering as in previous 
figures. 
